Removal of ash and clinker falling from the grates of boilers



H. KA HAYt HEMUVM. UF ASH ANU CUNKEH FALLING FROM THE GRATES 0F BUILERS.

APPLICATION FILED AUG.I2,1919.

R. K. HAY.

REMOVAL of ASH AND www: MLUNG FROM 1HE Gauss or BOILEHS.

APPLICATION FILED AUG-X2. |919.

megses,

a. K. HAY. REMOVAL 0F ASHAND CLINKEB SALLING IEDM THE-GRA'ES 0F BQILEB,

l APPLfcmuN miams. x2. |919.- 1,324,671.

Patented Dee. 9,1919.

5 SHEETSSHEL'I' 3 R. I( HAY.

HEMUYAL 0F ASH AND CLINKEH FALLIfG FHDM THE GRATES 0F BOILERS.

^ APPLICATmu man Aulz. m9.

1,324Q671. Y Patented Dec. 9,1919.

s saiss-SHEET 4.

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R. K. HAY. nEMovAL 0F Asn AND CLINKER Mmm; FRUM 1HE GRATES 0F BolLEHsf MWUCATON FIL-ED AUG- 12. |939.

Patented Dec. 9,1919.Y

v5 SHEETS-5 HEET 5.

STATES PATENT OFFICE.

ROBERT K. HAY, 0F CHOPWELL, ENGLAND,

ASSIGNOR TO HIMSELF, AND UNDERFEED STOKER COMPANY LIMITED, 0F LONDON, ENGLAND.

REMOVAL 0F ASH AND'CLINKEB FALLIHG FROM THE GBATES 10F BOILEBS.

tion of Letters Patent.

Patented Dec. 9, 1919.

Appunti mea ungut ia, isla. serial n. siam.

the removal of ash and clinker from furp naces.

According to the present inventlon, the

. .ashes from the lire grate pass by force of gravity to the lower member of an endless chain""conveyer operatin in a water sealed trough and are removed y the conveyer be' yond the water seal for* further disposal, the operation being effected without admission of air to the combustion space of the furnace. I

Apparatus made in accordance with this invention comprises a. conveyer, preferably an' endless chain belt of the knowndrag link or scraper type, moving along the bottom of a trough or trenchunder one or more furnaces, the trou h bottom being inclined up at the ends so t iat it will contain water, and the return art ofthe chain running on a track above t e trough. Ash chutes dis.

posed between the underside of the furnace and the trough, having their ends below the water level in the trough and inclined sufficiently from the vertical to pass between the upper and lower parts of the chain conveyer, deliver the ashes on to the lower part of the chain. y

The trough may be in a drift under the furnaces or it and the chutes may b e built ing an application of theinvention to' ai boiler' house having two water tube boilers Vfitted with four mechaxcal stakers;

` Fig. Eisacrosssection online lL-A of Fig. 3;'

ig. 3 is a plan;

Fig. 4 is an end elevation on B-B, Fig. 3;

Fig. 5 is a section through C'-C'., Fig. 1;

Fig. 6 is a section through D'-D, Fig. l;

Fig. 7 is a section through the hopper and conveyer frame. y

a a are the `walls of the boiler house and vb b b Z1 the grates of the boilers. Below each grate is a hopper c with inclined chute c adapted to receive the ashes from the grate and to discharge them into a cast iron trough d which is disposed in a concrete trough e running transversely of the boilers. The ends of the trough are inclined upward so that it may contain water. At one end of the cast iron trough the return of the scraper chain f is taken over 'a suitable drlving drum or spocket wheel h, and' at the other end over a tension device 'h'. The return or uppr part of the conveyer chain runs on a track ormedfby suitable rollers g supported by a framework from the trough. Thelower or operative part of the chain f conveys the ashes and clinker along the bottom of the trough d to a tipping wagon or other suitable arrangement. The c0nv`eyer 'is.adapted 'to be operated continuously by the same power which operates the mechanical Stoker throu h shafting g and gear g',

main- Stoker sha ing z', friction clutch j, reduction gearin k and motor 7c which drives all the p ant. L is a fan and L the.`

'carrying the same into practical e'ect, I 'claimrj 1. Apparatus .for removing ashes and clinker from furnaces compl-15in in combination a water sealed trough below the furnace, an endless sciiaper convcyer operating in said trough, means for supporting the return or inoperative side of the conveyer above 'the levelof the trough and a hopper with a' water sealed chute` so positionedv as vto direqt'the ashes from the {urnaceinto the trough between the upper and lower runs of the conveyer.

2. In boiler furnaces tted with mechanical ,stokers, an apparatus for removing veye1,said means comprising a water sea1ed ashes from the furnace, comprising in comchute, and means for driving the oonveyer 10 bination a Water sealed trough ybelow the from the power shaft operating the mechanifurnace, an endless chain conveyor operating cal Stoker.

in seid trough, means for {ieliverin the,` In testimony whereof I have signed my ashes from the furnace into the troug bename to this specification.4 tween the upper or return and lower 0r operative runs off the ,endless chain con- R. K. HAY. 

